L99DZ300GTR

Power Management - Specialized Overview

The L99DZ300GTR is an automotive door zone system IC from STMicroelectronics, designed for electronic control modules. It integrates enhanced power management with various standby modes and supports LIN and CAN FD physical communication layers. The device features two low-drop voltage regulators for the microcontroller and peripherals. It includes ten high-side drivers for LEDs and bulbs, capable of constant current mode. The IC can drive up to five DC motors and four external MOS transistors in H-bridge configuration via PWM up to 25 kHz. An additional gate drive controls an external high-side MOSFET for resistive loads. Electrochromic mirror glass control is supported through an integrated SPI module. All outputs include short-circuit protection and open-load diagnosis.

Power Management - Specialized Feature Summary

• Integrates CAN FD and LIN physical communication layers for robust automotive networking
• Provides dual low-drop voltage regulators for system microcontroller and peripheral supply
• Supports driving multiple DC motors and external MOS transistors in H-bridge configurations
• Includes programmable local and remote wake-up capabilities for enhanced standby functionality

Power Management - Specialized Applications

• Automotive front door electronic control modules
• Door zone systems requiring integrated power management and communication
• Electrochromic mirror glass control applications

Power Management - Specialized Procurement Notes

Verify the specific suffix 'GTR' indicates the reel packaging format when ordering. Confirm that the component meets AEC-Q100 qualification requirements for your automotive application. Ensure compatibility with the required SPI interface version and check humidity sensitivity handling procedures during assembly. Validate that the pinout matches your PCB design for the LQFP package.

Power Management - Specialized Selection Notes

Select this component when a single IC solution is needed to manage door zone functions including motor drives, LED/bulb supplies, and CAN FD/LIN communication. It is suitable for designs requiring high integration of power switches and diagnostic features. Consider the available half-bridge currents and high-side driver configurations to ensure they meet the load requirements of the specific actuators and sensors in the door module.

Power Management - Specialized Part Context

The L99DZ300GTR belongs to the L99DZ series of automotive door zone devices from STMicroelectronics. This family focuses on integrating power management, communication interfaces, and motor/switch drivers into a single chip to reduce board space and complexity. It is part of ST's broader portfolio of VIPower and body electronics solutions aimed at modernizing vehicle interiors and convenience features.

Power Management - Specialized Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.